Combined internal heat dissipation silicon steel sheet for DD motor
By designing a combined internal heat dissipation silicon steel sheet and using the splicing structure of riveting grooves and dovetail grooves/protruding grooves, the problems of poor heat dissipation and high production costs of DD motor silicon steel sheet are solved, achieving more efficient heat dissipation and lower cost production.
Patent Information
- Application Number
- CN202420049103.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-09
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-09
AI Technical Summary
The existing DD motors have poor heat dissipation effect, high production and processing costs, large volume and weight, and insufficient ring-type integrated design.
A combined internal heat dissipation silicon steel sheet is designed to form a round silicon steel sheet assembly through a splicing structure of riveting grooves and dovetail grooves/convex grooves, which increases the heat dissipation grooves, simplifies the structure, and reduces production costs.
It improves the heat dissipation effect of silicon steel sheets and coil winding efficiency, reduces production and processing costs, and reduces volume and weight.
Smart Images
Figure CN222191934U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to the technical field of permanent magnet motors, in particular to a combined internal heat dissipation silicon steel sheet for a DD motor. [Background Technology]
[0002] DD motor is a permanent magnet motor, the main components are stator assembly and rotor assembly; the rotor assembly is equipped with strong permanent magnets, and the stator assembly is a laminated silicon steel sheet inlaid coil winding assembly. Conventional silicon steel heat dissipation relies on heat conduction from the silicon steel sheet shell, which has the defect of poor heat dissipation effect; in addition, the motor silicon steel sheets on the market currently basically adopt a ring-shaped integrated design, which has the disadvantages of large size, heavy weight, and high production and processing costs. [Contents of the utility model]
[0003] The purpose of the utility model is to solve the above-mentioned deficiencies and provide a combined internal heat dissipation silicon steel sheet for DD motors, which not only facilitates the heat dissipation of the winding of the whole round silicon steel sheet assembly and improves the heat dissipation effect of the silicon steel sheet, but also facilitates the coil winding and improves the slot full rate of the coil winding.
[0004] In order to achieve the above-mentioned purpose, a combined internal heat dissipation silicon steel sheet for DD motor is designed, including a silicon steel sheet single piece, a rivet groove is opened in the silicon steel sheet single piece, a heat dissipation groove 5 is provided on the upper outer surface of the silicon steel sheet single piece, a dovetail groove 1 is provided on the left outer surface of the silicon steel sheet single piece, and a dovetail convex groove 2 is provided on the right outer surface of the silicon steel sheet single piece, the dovetail groove 1 is matched with the dovetail convex groove 2, a plurality of silicon steel sheet single pieces are overlapped by the rivet groove to form a silicon steel sheet component, and a plurality of adjacent silicon steel sheet components are spliced by the dovetail groove 1 and the dovetail convex groove 2 to form a full-circle silicon steel sheet assembly.
[0005] Furthermore, the single silicon steel sheet includes a silicon steel sheet transverse sheet 6 and a silicon steel sheet vertical sheet 7, the silicon steel sheet transverse sheet 6 and the silicon steel sheet vertical sheet 7 are cross-linked to form a cross shape, the left and right sides of the silicon steel sheet transverse sheet 6 are respectively connected to a left sheet 8 and a right sheet 9, the left sheet 8, the right sheet 9, the silicon steel sheet transverse sheet 6 and the silicon steel sheet vertical sheet 7 form a "mountain" shaped structure, which has a simple structure and is easy to manufacture, thereby reducing the production and processing costs.
[0006] Furthermore, the dovetail groove 1 is arranged on the left end outer surface of the silicon steel sheet cross piece 6, and the dovetail convex groove 2 is arranged on the right end outer surface of the silicon steel sheet cross piece 6, and the dovetail groove 1 and the dovetail convex groove 2 are both inclined downward, so that the adjacent silicon steel sheet components are spliced together to finally form a full-circular silicon steel sheet.
[0007] Furthermore, the dovetail groove 1 is configured as an Ω-shaped groove, and the dovetail convex groove 2 is configured as an Ω-shaped convexity, so that the connection is more reliable and the splicing effect is better.
[0008] Furthermore, heat dissipation grooves 5 are formed between the left sheet 8 and the silicon steel sheet vertical sheet 7, and between the right sheet 9 and the silicon steel sheet vertical sheet 7, so that there are two heat dissipation grooves on a single silicon steel sheet, the heat dissipation effect is better, and the processing is more convenient.
[0009] Furthermore, the silicon steel sheet transverse sheet 6 is provided with a rivet groove 1 3 extending in the transverse direction, and the silicon steel sheet vertical sheet 7 is provided with a rivet groove 2 4 extending in the longitudinal direction, so that bolts are passed through both the rivet groove 1 3 and the rivet groove 2 4, and the structure is more stable.
[0010] Furthermore, the lower end of the silicon steel sheet vertical plate 7 is connected to the bottom plate 10, the silicon steel sheet vertical plate 7 and the bottom plate 10 are an integrated structure and form an inverted "T"-shaped structure, the bottom surface of the bottom plate 10 is concave inward to form an arc surface 11, and after multiple silicon steel sheets are spliced together, the arc surface 11 forms a circle, thereby reducing the wear of the coil winding.
[0011] Compared with the prior art, the utility model forms a single silicon steel sheet component by stacking a single silicon steel sheet into a required height through riveting grooves, and the single silicon steel sheet component is spliced into a whole circular silicon steel sheet assembly through dovetail grooves and dovetail convex grooves. Since two heat dissipation grooves are processed on a single silicon steel sheet, the silicon steel sheet itself directly dissipates heat through the heat dissipation grooves, and the heat dissipation effect is high, which not only facilitates the heat dissipation of the winding of the whole circular silicon steel sheet assembly and improves the heat dissipation effect of the silicon steel sheet, but also facilitates coil winding and improves the slot full rate of the coil winding. In addition, the utility model adopts a splicing structure, which has a simple structure and low production and processing costs, reduces production costs, and is worthy of popularization and application. [Drawings]
[0012] Figure 1 This is a schematic diagram of the structure of a single silicon steel sheet of the utility model;
[0013] Figure 2 This is a schematic diagram of the top view of the structure of the full-circle silicon steel sheet assembly of the utility model;
[0014] Figure 3 It is a three-dimensional structural schematic diagram of a full-circle silicon steel sheet assembly of the utility model;
[0015] Figure 4 yes Figure 3 A partial enlarged view of
[0016] In the figure: 1, dovetail groove 2, dovetail convex groove 3, rivet groove one 4, rivet groove two 5, heat dissipation groove 6, silicon steel sheet transverse sheet 7, silicon steel sheet vertical sheet 8, left sheet 9, right sheet 10, bottom sheet 11, curved surface. [Specific implementation method]
[0017] The utility model is further described below in conjunction with the accompanying drawings:
[0018] As shown in the accompanying drawings, the utility model provides a combined internal heat dissipation silicon steel sheet for a DD motor, including a silicon steel sheet single piece, a rivet groove is opened in the silicon steel sheet single piece, a heat dissipation groove 5 is provided on the upper outer surface of the silicon steel sheet single piece, a dovetail groove 1 is provided on the left outer surface of the silicon steel sheet single piece, and a dovetail convex groove 2 is provided on the right outer surface of the silicon steel sheet single piece, the dovetail groove 1 is adapted to the dovetail convex groove 2, a plurality of silicon steel sheet single pieces are overlapped by the rivet groove to form a silicon steel sheet component, and a plurality of adjacent silicon steel sheet components are spliced by the dovetail groove 1 and the dovetail convex groove 2 to form a full-circle silicon steel sheet assembly.
[0019] Among them, the silicon steel sheet single piece includes a silicon steel sheet transverse sheet 6 and a silicon steel sheet vertical sheet 7, the silicon steel sheet transverse sheet 6 and the silicon steel sheet vertical sheet 7 are cross-shaped to form a cross, the left and right sides of the silicon steel sheet transverse sheet 6 are respectively connected to the left sheet 8 and the right sheet 9, the left sheet 8, the right sheet 9, the silicon steel sheet transverse sheet 6 and the silicon steel sheet vertical sheet 7 form a "mountain" shaped structure, the structure is simple, and the manufacturing is convenient, thereby reducing the production and processing costs; heat dissipation grooves 5 are formed between the left sheet 8 and the silicon steel sheet vertical sheet 7, and between the right sheet 9 and the silicon steel sheet vertical sheet 7, so that there are two heat dissipation grooves on a single silicon steel sheet, the heat dissipation effect is better, and the processing is more convenient; the lower end of the silicon steel sheet vertical sheet 7 is connected to the bottom sheet 10, the silicon steel sheet vertical sheet 7 and the bottom sheet 10 are an integrated structure, and form an inverted "T" shaped structure, the bottom surface of the bottom sheet 10 is concave inward to form an arc surface 11, and after multiple silicon steel sheets are spliced together, the arc surface 11 forms a circle, which reduces the wear of the coil winding.
[0020] The dovetail groove 1 is arranged on the outer surface of the left end of the silicon steel sheet transverse sheet 6, and the dovetail convex groove 2 is arranged on the outer surface of the right end of the silicon steel sheet transverse sheet 6, and the dovetail groove 1 and the dovetail convex groove 2 are both inclined downward, so that adjacent silicon steel sheet parts can be spliced to form a full-circle silicon steel sheet; the dovetail groove 1 is arranged as an Ω-shaped groove, and the dovetail convex groove 2 is arranged as an Ω-shaped protrusion, so that the connection is more reliable and the splicing effect is better. The silicon steel sheet transverse sheet 6 is provided with a rivet groove 1 3 extending in the horizontal direction, and the silicon steel sheet vertical sheet 7 is provided with a rivet groove 2 4 extending in the longitudinal direction, so that bolts are inserted through the rivet groove 1 3 and the rivet groove 2 4, and the structure is more stable.
[0021] In the present invention, the silicon steel sheet splicing structure and the silicon steel sheet heat dissipation groove structure are both improvements of the present invention. Specifically, the single silicon steel sheet of the present invention is mainly composed of a dovetail groove 1, a dovetail convex groove 2, a rivet groove 1 3, a rivet groove 2 4 and a heat dissipation groove 5. The whole round silicon steel sheet assembly of the present invention is: first, the single silicon steel sheet is stacked to the required height through the rivet groove 1 and the rivet groove 2 to form a single silicon steel sheet component; then, the single silicon steel sheet components are spliced into a whole round silicon steel sheet assembly through the dovetail groove and the dovetail convex groove; because two heat dissipation grooves are processed on a single silicon steel sheet, it is convenient for the whole round silicon steel sheet assembly to dissipate the heat of the winding.
[0022] In summary, the full-circle silicon steel sheet assembly of the utility model not only facilitates coil winding, improves the slot fill rate of coil winding, but also improves the heat dissipation effect of the silicon steel sheet.
[0023] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. The standard parts used can be purchased from the market, and special-shaped parts can be customized according to the records in the specification and drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment adopt conventional models in the prior art, and circuit connections adopt conventional connection methods in the prior art, which will not be described in detail here.
[0024] The present invention is not limited to the above-mentioned implementation modes, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be considered as equivalent replacement modes and shall be included in the protection scope of the present invention.
Claims
1. A combined internal heat dissipation silicon steel sheet for DD motor, characterized in that: The invention comprises a silicon steel sheet, wherein a rivet groove is provided in the silicon steel sheet, a heat dissipation groove (5) is provided on the upper outer surface of the silicon steel sheet, a dovetail groove (1) is provided on the left outer surface of the silicon steel sheet, and a dovetail convex groove (2) is provided on the right outer surface of the silicon steel sheet, wherein the dovetail groove (1) is matched with the dovetail convex groove (2), a plurality of silicon steel sheet components are overlapped by the rivet groove to form a silicon steel sheet component, and a plurality of adjacent silicon steel sheet components are spliced by the dovetail groove (1) and the dovetail convex groove (2) to form a full-circle silicon steel sheet component.
2. The combined internal heat dissipation silicon steel sheet for DD motor according to claim 1, characterized in that: The silicon steel sheet single piece comprises a silicon steel sheet transverse piece (6) and a silicon steel sheet vertical piece (7), the silicon steel sheet transverse piece (6) and the silicon steel sheet vertical piece (7) are vertically and horizontally crossed to form a cross shape, the silicon steel sheet transverse piece (6) is connected to a left side piece (8) and a right side piece (9) on the left and right sides respectively, and the left side piece (8), the right side piece (9), the silicon steel sheet transverse piece (6) and the silicon steel sheet vertical piece (7) form a "mountain" shaped structure.
3. The combined internal heat dissipation silicon steel sheet for DD motor according to claim 2, characterized in that: The dovetail groove (1) is arranged on the left end outer surface of the silicon steel sheet transverse piece (6), and the dovetail convex groove (2) is arranged on the right end outer surface of the silicon steel sheet transverse piece (6), and both the dovetail groove (1) and the dovetail convex groove (2) are inclined downward.
4. The combined internal heat dissipation silicon steel sheet for DD motor according to claim 1, 2 or 3, characterized in that: The dovetail groove (1) is configured as an Ω-shaped groove, and the dovetail protrusion (2) is configured as an Ω-shaped protrusion.
5. The combined internal heat dissipation silicon steel sheet for DD motor according to claim 2, characterized in that: Heat dissipation grooves (5) are formed between the left side piece (8) and the silicon steel sheet vertical piece (7), and between the right side piece (9) and the silicon steel sheet vertical piece (7).
6. The combined internal heat dissipation silicon steel sheet for DD motor according to claim 2, characterized in that: The silicon steel sheet transverse sheet (6) is provided with a first rivet groove (3) extending in a transverse direction, and the silicon steel sheet vertical sheet (7) is provided with a second rivet groove (4) extending in a longitudinal direction.
7. The combined internal heat dissipation silicon steel sheet for DD motor according to claim 2, characterized in that: The lower end of the silicon steel sheet vertical sheet (7) is connected to a bottom sheet (10); the silicon steel sheet vertical sheet (7) and the bottom sheet (10) are an integrated structure and form an inverted "T"-shaped structure; the bottom surface of the bottom sheet (10) is inwardly concave to form a curved surface (11).